6 papers
Compressibility of genuine multipartite entanglement under the Hadamard map
Klára Baksová, Lisa T. Weinbrenner
One of the most counterintuitive effects in the examination of quantum states is the phenomenon of superactivation, which describes the fact that a quantum state, which is useless…
Complete Hierarchies for the Geometric Measure of Entanglement
Lisa T. Weinbrenner, Albert Rico, Kenneth Goodenough +2
In quantum physics, multiparticle systems are described by quantum states acting on tensor products of Hilbert spaces. This product structure leads to the distinction between produ…
Quantifying entanglement from the geometric perspective
Lisa T. Weinbrenner, Otfried Gühne
Quantum entanglement between several particles is essential for applications like quantum metrology or quantum cryptography, but it is also central for foundational phenomena like…
Optimal Overlapping Tomography
Kiara Hansenne, Rui Qu, Lisa T. Weinbrenner +7
Characterising large-scale quantum systems is central to fundamental physics and essential for applications of quantum technologies. While a full characterisation requires exponent…
Superactivation and Incompressibility of Genuine Multipartite Entanglement
Lisa T. Weinbrenner, Klára Baksová, Sophia Denker +4
Quantum correlations in the form of entanglement, quantum steering or Bell nonlocality are resources for various information-processing tasks, but their detailed quantification and…
No quantum advantage without classical communication: fundamental limitations of quantum networks
Justus Neumann, Tulja Varun Kondra, Kiara Hansenne +5
Quantum networks connect systems at separate locations via quantum links, enabling a wide range of quantum information tasks between distant parties. Large-scale networks have the…